From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DCC44C2D0D9 for ; Mon, 9 Dec 2019 22:54:27 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id BAC8F20721 for ; Mon, 9 Dec 2019 22:54:27 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org BAC8F20721 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=nvidia.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 0EF706E5CA; Mon, 9 Dec 2019 22:54:16 +0000 (UTC) Received: from hqnvemgate26.nvidia.com (hqnvemgate26.nvidia.com [216.228.121.65]) by gabe.freedesktop.org (Postfix) with ESMTPS id AAF196E5B6 for ; Mon, 9 Dec 2019 22:54:07 +0000 (UTC) Received: from hqpgpgate101.nvidia.com (Not Verified[216.228.121.13]) by hqnvemgate26.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Mon, 09 Dec 2019 14:54:01 -0800 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate101.nvidia.com (PGP Universal service); Mon, 09 Dec 2019 14:54:07 -0800 X-PGP-Universal: processed; by hqpgpgate101.nvidia.com on Mon, 09 Dec 2019 14:54:07 -0800 Received: from HQMAIL105.nvidia.com (172.20.187.12) by HQMAIL107.nvidia.com (172.20.187.13) with Microsoft SMTP Server (TLS) id 15.0.1473.3; Mon, 9 Dec 2019 22:54:06 +0000 Received: from rnnvemgw01.nvidia.com (10.128.109.123) by HQMAIL105.nvidia.com (172.20.187.12) with Microsoft SMTP Server (TLS) id 15.0.1473.3 via Frontend Transport; Mon, 9 Dec 2019 22:54:05 +0000 Received: from blueforge.nvidia.com (Not Verified[10.110.48.28]) by rnnvemgw01.nvidia.com with Trustwave SEG (v7, 5, 8, 10121) id ; Mon, 09 Dec 2019 14:54:05 -0800 From: John Hubbard To: Andrew Morton Subject: [PATCH v8 18/26] media/v4l2-core: pin_user_pages (FOLL_PIN) and put_user_page() conversion Date: Mon, 9 Dec 2019 14:53:36 -0800 Message-ID: <20191209225344.99740-19-jhubbard@nvidia.com> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191209225344.99740-1-jhubbard@nvidia.com> References: <20191209225344.99740-1-jhubbard@nvidia.com> MIME-Version: 1.0 X-NVConfidentiality: public X-Mailman-Original-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1575932041; bh=sXkMwo6nCTbLEEe6A0fE3HZE6drkGcT2bf/xg2miV08=; h=X-PGP-Universal:From:To:CC:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:MIME-Version:X-NVConfidentiality: Content-Transfer-Encoding:Content-Type; b=FLOLQRiKgJJoAnuC+6tqDLJ5k4Jl5KPBtJul6duA8UksyeoiLHe0mg9wwGhRcVPgD qrmOL/x9WFC5Kn2QviSXFvyY2IJci50VP0l5oS6WDgklv9lSmhxVO7HDGjbYrv/x3R ebwMMcIePmZD4je2i8s10CQ1B35w84LWehpnXy/7Tkmu2ovAYTZEazrvVGUnBwCQzD x7/fJV0sh3T04qcuIqC/ei7scvRhAlk9WMYIyA4RGCzrtZx3J+fAVUyWvHGVSgLbiJ H6AoiklJUdkLhVMRyvzNXZGN1mUx1DfMaEIy+/EaOEvxv0nktjLyVJLdBEMm0npPYy +iKopMyawnngQ== X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Michal Hocko , Jan Kara , kvm@vger.kernel.org, linux-doc@vger.kernel.org, David Airlie , Dave Chinner , dri-devel@lists.freedesktop.org, LKML , linux-mm@kvack.org, Paul Mackerras , linux-kselftest@vger.kernel.org, Ira Weiny , Jonathan Corbet , linux-rdma@vger.kernel.org, Michael Ellerman , Christoph Hellwig , Jason Gunthorpe , Vlastimil Babka , =?UTF-8?q?Bj=C3=B6rn=20T=C3=B6pel?= , linux-media@vger.kernel.org, Shuah Khan , John Hubbard , linux-block@vger.kernel.org, Hans Verkuil , =?UTF-8?q?J=C3=A9r=C3=B4me=20Glisse?= , Al Viro , Dan Williams , Mauro Carvalho Chehab , Magnus Karlsson , Jens Axboe , netdev@vger.kernel.org, Alex Williamson , linux-fsdevel@vger.kernel.org, bpf@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, "David S . Miller" , Mike Kravetz Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" MS4gQ2hhbmdlIHY0bDIgZnJvbSBnZXRfdXNlcl9wYWdlcygpIHRvIHBpbl91c2VyX3BhZ2VzKCku CgoyLiBCZWNhdXNlIGFsbCBGT0xMX1BJTi1hY3F1aXJlZCBwYWdlcyBtdXN0IGJlIHJlbGVhc2Vk IHZpYQpwdXRfdXNlcl9wYWdlKCksIGFsc28gY29udmVydCB0aGUgcHV0X3BhZ2UoKSBjYWxsIG92 ZXIgdG8KcHV0X3VzZXJfcGFnZXNfZGlydHlfbG9jaygpLgoKQWNrZWQtYnk6IEhhbnMgVmVya3Vp bCA8aHZlcmt1aWwtY2lzY29AeHM0YWxsLm5sPgpDYzogSXJhIFdlaW55IDxpcmEud2VpbnlAaW50 ZWwuY29tPgpTaWduZWQtb2ZmLWJ5OiBKb2huIEh1YmJhcmQgPGpodWJiYXJkQG52aWRpYS5jb20+ Ci0tLQogZHJpdmVycy9tZWRpYS92NGwyLWNvcmUvdmlkZW9idWYtZG1hLXNnLmMgfCAxMSArKysr LS0tLS0tLQogMSBmaWxlIGNoYW5nZWQsIDQgaW5zZXJ0aW9ucygrKSwgNyBkZWxldGlvbnMoLSkK CmRpZmYgLS1naXQgYS9kcml2ZXJzL21lZGlhL3Y0bDItY29yZS92aWRlb2J1Zi1kbWEtc2cuYyBi L2RyaXZlcnMvbWVkaWEvdjRsMi1jb3JlL3ZpZGVvYnVmLWRtYS1zZy5jCmluZGV4IDI4MjYyMTkw YzNhYi4uMTYyYTI2MzNiMWUzIDEwMDY0NAotLS0gYS9kcml2ZXJzL21lZGlhL3Y0bDItY29yZS92 aWRlb2J1Zi1kbWEtc2cuYworKysgYi9kcml2ZXJzL21lZGlhL3Y0bDItY29yZS92aWRlb2J1Zi1k bWEtc2cuYwpAQCAtMTgzLDEyICsxODMsMTIgQEAgc3RhdGljIGludCB2aWRlb2J1Zl9kbWFfaW5p dF91c2VyX2xvY2tlZChzdHJ1Y3QgdmlkZW9idWZfZG1hYnVmICpkbWEsCiAJZHByaW50aygxLCAi aW5pdCB1c2VyIFsweCVseCsweCVseCA9PiAlZCBwYWdlc11cbiIsCiAJCWRhdGEsIHNpemUsIGRt YS0+bnJfcGFnZXMpOwogCi0JZXJyID0gZ2V0X3VzZXJfcGFnZXMoZGF0YSAmIFBBR0VfTUFTSywg ZG1hLT5ucl9wYWdlcywKKwllcnIgPSBwaW5fdXNlcl9wYWdlcyhkYXRhICYgUEFHRV9NQVNLLCBk bWEtPm5yX3BhZ2VzLAogCQkJICAgICBmbGFncyB8IEZPTExfTE9OR1RFUk0sIGRtYS0+cGFnZXMs IE5VTEwpOwogCiAJaWYgKGVyciAhPSBkbWEtPm5yX3BhZ2VzKSB7CiAJCWRtYS0+bnJfcGFnZXMg PSAoZXJyID49IDApID8gZXJyIDogMDsKLQkJZHByaW50aygxLCAiZ2V0X3VzZXJfcGFnZXM6IGVy cj0lZCBbJWRdXG4iLCBlcnIsCisJCWRwcmludGsoMSwgInBpbl91c2VyX3BhZ2VzOiBlcnI9JWQg WyVkXVxuIiwgZXJyLAogCQkJZG1hLT5ucl9wYWdlcyk7CiAJCXJldHVybiBlcnIgPCAwID8gZXJy IDogLUVJTlZBTDsKIAl9CkBAIC0zNDksMTEgKzM0OSw4IEBAIGludCB2aWRlb2J1Zl9kbWFfZnJl ZShzdHJ1Y3QgdmlkZW9idWZfZG1hYnVmICpkbWEpCiAJQlVHX09OKGRtYS0+c2dsZW4pOwogCiAJ aWYgKGRtYS0+cGFnZXMpIHsKLQkJZm9yIChpID0gMDsgaSA8IGRtYS0+bnJfcGFnZXM7IGkrKykg ewotCQkJaWYgKGRtYS0+ZGlyZWN0aW9uID09IERNQV9GUk9NX0RFVklDRSkKLQkJCQlzZXRfcGFn ZV9kaXJ0eV9sb2NrKGRtYS0+cGFnZXNbaV0pOwotCQkJcHV0X3BhZ2UoZG1hLT5wYWdlc1tpXSk7 Ci0JCX0KKwkJcHV0X3VzZXJfcGFnZXNfZGlydHlfbG9jayhkbWEtPnBhZ2VzLCBkbWEtPm5yX3Bh Z2VzLAorCQkJCQkgIGRtYS0+ZGlyZWN0aW9uID09IERNQV9GUk9NX0RFVklDRSk7CiAJCWtmcmVl KGRtYS0+cGFnZXMpOwogCQlkbWEtPnBhZ2VzID0gTlVMTDsKIAl9Ci0tIAoyLjI0LjAKCl9fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmRyaS1kZXZlbCBtYWls aW5nIGxpc3QKZHJpLWRldmVsQGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRwczovL2xpc3RzLmZy ZWVkZXNrdG9wLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2RyaS1kZXZlbA==